查询词典 variation

Orthodox historical linguists ascribe variation to language-in or structural factors; functionalists attribute variation to external factors; and sociolinguists associate variation with change of social norms.

长期以来，语言变异研究没有注意到或者说忽略了认知因素对语言变异，特别是对句法变异的触发作用。变异这个术语在本文中主要指历时变异。

Two types of new Abel differential equation are structured by method of variation replacement, variation position transformation and compound function derivation law.

借助变量替换法、交换变量位置法及复合函数求导法则，构造出两类新的 Abel型微分方程，论证它们的可积性，提供可积的判据，从而推广有关文献的结论，扩大微分方程的可积范围。

In my theory of absolute velocity of matter, I will show that the variation within all these experimental results, not only IS NOT due to experimental error, but that the measure of the variation itself is of paramount importance to our understanding of physical laws, and indeed of the whole universe.

在我的物质绝对速度理论中，我会展示所有这些实验中的变化量，不仅不是实验的误差，而且这些数值变化所具有的重要性，除了体现在我们对物理定律的理解中，还体现在我们对整个宇宙的理解中。

Adamson reviews scholarship in sociolinguistics and second language acquisition, comparing theories of variation in first- and second-language speech, with special attention to the psychological underpinnings of variation theory.

在这本书中高清亚当森评语奖学金语言学和第二语言习得，比较，第一和第二语言的讲话变化的理论，并特别注意心理变异的理论基础。

The Frechet derivative of the cost function is determined via the solution of an adjoint partial differential equation, and the boundary shape is then modified in a direction of descent. This process is repeated until an optimum solution is approached. The advantage is that the cost function variation is independent of the flow field variation, with the result that the gradient of cost function with respect to arbitrary number of design variables can be determined without the need for additional flow-field evaluations. So each design cycle requires the numerical solution of both the flow and the adjoint equations leading to a computational cost roughly equal to the cost of two flow solutions.

虽然他们的研究成果大多数都可以在公开性文献上看到，但是其中一些具体的细节问题的处理方法却没有透露，比如：伴随方程如何离散求解才能减小最终梯度计算中的误差，使得设计过程有效地进行；伴随方程与流动方程的边界条件是不同的，如何合理地处理伴随方程的边界条件，才能推动设计过程朝着设计目标而发展；在减阻问题中目标函数如何定义，求解梯度的具体数学公式如何推导，如何通过数值方法来实现它们等。

The main results were as follows: 1.After being radiated with 60 Co-γ, seven types of mutated plants were obtained through morphologic observation on the aftergrowth of the regeneration plantlets. The mutation characters included the purple leaf vein and petiole, the spotted leaf, the strumae leaf, the acerose leaf, the tender stem, the leaf shape variation, and the leaf color variation.

通过60 Co-γ射线诱变处理后的再生植株试管苗阶段的形态学观察，共获包括紫色叶柄、斑叶、瘤状叶片、细长叶片、茎杆细小、叶型变异、叶色变异的7种不同类型的变异植株。

Using an airgun as a repeatable seismic source and recording the data at a fixed point, the variation of shear wave splitting parameters can indicate the variation of local stress-strain fields, and hence provides a method for earthquake stress-forecasting.

气枪是高度可重复性人工震源，利用气枪定点激发和定点接收有可能精确获取S波分裂参数随时间的变化规律，为地震预测探索实践提供可靠的物理途径。

The oscillation of the base level results in their relative variation of accommodation space and sedimentary alimentation. The variation rates of them have also changed, then lead to the difference of facies sequence, the degree of stratigraphic preservation and stacking pattern at the same territory in different ages, or the difference of phase area at different territories at the same age.

由於基准面的升降变化引起了可容纳空间与沉积物供给量的相对变化，相对应的可容纳空间变化率和沉积物供给率同时也发生变化，因而导致了在不同时期同一地区的地层在相序、保存程度和叠加样式上的差异，以及在同一时期内不同地区在相域上的差别。

Population variation and differences in serum leptin independent of adiposity: a comparison of Ache Amerindian men of Paraguay and lean American male distance runners - Background: Serum leptin variation is commonly associated with fat percentage, body mass index, and activity.

人口变化和差异瘦素独立肥胖：比较酸痛精益美洲印第安人和巴拉圭男子中长跑男-背景：瘦素变化都与脂肪百分比，身体质量指数、活性。

Based on these data,AOT and Angstrom parameters were retrieved.Through analyzing the variation of AOT and Angstrom parameters,the reason which cause the variation was discussed.

利用这些数据，反演了气溶胶光学厚度和相应的Angstrom参数，分析了光学厚度和Angstrom参数的日变化和逐日变化，并讨论了这些变化的原因。

The production moved off-Broadway to New York City, where she won the Joseph E. Calloway award for her performance, and was profiled in American Theater Magazine as one of ten young theater artists to watch.

生产提出过百老汇的新的纽约市，在那里她赢得了约瑟夫calloway奖，她的表现，并于异型在美国的战区杂志之一， 10战区的青年艺术家观赏。

It's a risk tradeoff, and I believe that adding test support code usually wins.

这是一个风险的权衡，我相信添加测试代码通常会占上风。